The 'FourFiveSeconds' hitmaker was joined by her loved ones on a tropical trip, and Rihanna - who turned 32 on Thursday (20.02.20) - was keen to embrace the local culture during her birthday celebrations.
A source told E! News: "Rihanna is having a birthday celebration in Mexico. She invited her friends and family down to celebrate turning 32 with her.
"They had a dinner party on Wednesday night with dinner and dancing. Everyone was welcomed to the party with a line of mariachis performing and Tequila shots passed around.
"There were balloon arrangements, colourful flowers and Mexican decor both indoors and outdoors. They had a long outdoor table set up for dinner and the mariachis continued to perform."
The insider also revealed that following the dinner, the group enjoyed a "big dance party" together.
The source said: "They partied all night long with music, drinks, a birthday cake and cupcakes for Rihanna. She was in her element with the people she loves and having a great time."
Rihanna recently split from her long-time boyfriend Hassan Jameel.
And the Bajan beauty admitted earlier this month that she was poised to spend Valentine's Day in the studio, working on her long-awaited new album.
Asked about her Valentine's Day plans, Rihanna - who has previously dated the likes of Drake and Chris Brown - shared: "I'm going to be in the studio.
"I'm so excited actually. I can't say who I'm working with, but it's somebody I've been wanting to work with him for a long time."
Under pressure, Rihanna then revealed the big-name music star she was planning to work with.
She said: "Okay, I'll tell you. [It's] Pharrell."